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1 | // 2005-07-22 Paolo Carlini <pcarlini@suse.de> |
2 | ||
debac9f4 | 3 | // Copyright (C) 2005, 2006, 2007 Free Software Foundation |
ceed88b1 PC |
4 | // |
5 | // This file is part of the GNU ISO C++ Library. This library is free | |
6 | // software; you can redistribute it and/or modify it under the | |
7 | // terms of the GNU General Public License as published by the | |
8 | // Free Software Foundation; either version 2, or (at your option) | |
9 | // any later version. | |
10 | ||
11 | // This library is distributed in the hope that it will be useful, | |
12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | // GNU General Public License for more details. | |
15 | ||
16 | // You should have received a copy of the GNU General Public License along | |
17 | // with this library; see the file COPYING. If not, write to the Free | |
83f51799 | 18 | // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, |
ceed88b1 PC |
19 | // USA. |
20 | ||
21 | // 27.6.1.2.3 basic_istream::operator>> | |
22 | ||
0c20e4ec NS |
23 | // { dg-require-fileio "" } |
24 | ||
ceed88b1 PC |
25 | #include <istream> |
26 | #include <string> | |
27 | #include <fstream> | |
debac9f4 | 28 | #include <cstdlib> |
1b716e90 | 29 | #include <cstring> |
ceed88b1 PC |
30 | #include <testsuite_hooks.h> |
31 | ||
32 | using namespace std; | |
33 | ||
34 | string prepare(string::size_type len, unsigned nchunks) | |
35 | { | |
36 | string ret; | |
37 | for (unsigned i = 0; i < nchunks; ++i) | |
38 | { | |
39 | for (string::size_type j = 0; j < len; ++j) | |
40 | ret.push_back('a' + rand() % 26); | |
41 | len *= 2; | |
42 | ret.push_back(' '); | |
43 | } | |
44 | return ret; | |
45 | } | |
46 | ||
47 | void check(istream& stream, const string& str, unsigned nchunks) | |
48 | { | |
49 | bool test __attribute__((unused)) = true; | |
50 | ||
51 | char* chunk = new char[str.size()]; | |
52 | memset(chunk, 'X', str.size()); | |
53 | ||
54 | string::size_type index = 0, index_new = 0; | |
55 | unsigned n = 0; | |
56 | ||
57 | while (stream >> chunk) | |
58 | { | |
59 | index_new = str.find(' ', index); | |
60 | VERIFY( !str.compare(index, index_new - index, chunk) ); | |
61 | index = index_new + 1; | |
62 | ++n; | |
63 | memset(chunk, 'X', str.size()); | |
64 | } | |
65 | VERIFY( stream.eof() ); | |
66 | VERIFY( n == nchunks ); | |
67 | ||
68 | delete[] chunk; | |
69 | } | |
70 | ||
71 | // istream& operator>>(istream&, charT*) | |
72 | void test01() | |
73 | { | |
74 | const char filename[] = "inserters_extractors-4.txt"; | |
75 | ||
76 | const unsigned nchunks = 10; | |
77 | const string data = prepare(666, nchunks); | |
78 | ||
79 | ofstream ofstrm; | |
80 | ofstrm.open(filename); | |
81 | ofstrm.write(data.data(), data.size()); | |
82 | ofstrm.close(); | |
83 | ||
84 | ifstream ifstrm; | |
85 | ifstrm.open(filename); | |
86 | check(ifstrm, data, nchunks); | |
87 | ifstrm.close(); | |
88 | } | |
89 | ||
90 | int main() | |
91 | { | |
92 | test01(); | |
93 | return 0; | |
94 | } |